Wrench.



PATENTED JULY 28, 1908.

` J. JOHNSON.'-

WRENGHK APPLICATION FILED AUG. 21, 1907.

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- @f MI@ UNITED STATES PATENT OFFTCE.

JOHN JOHNSON, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO CHARLES F. MCQUAID,

. OF CHICAGO, ILLINOIS.

WRENCH.

Specification of Letters Patent.

Patented July 28, 1908.

.the State of Illinois, have invented certain new and useful Improvements in Wrenches, of which the following is a specification.

My invention relates to that class of wrenches which are especially adapted for use at different angles or amid such obstructions as preclude free action, and my invention resides in the novel construction as set forth hereinafter.

In the drawings, Figure 1, is an elevation of my Wrench showing the internal mechanism in dotted lines. Fig. 2, is a sectional View ofFig. 1 taken through the line A B of Fig. l: Figs. 3 and 4 represent two different forms of wrench heads used in my device.

More particularly described C represents the handle of my Wrench, which is adapted to be removably connected with the body of the wrench, and threaded at the end G to engage with said body, and is tapered for the purpose of effecting a tight joint with said body. The said body consists of a tubular cross arm F, which is iitted interiorly with opposingly notched lines of ratchetsf and f and engaging the said cross arm F, at its either end are the tubes M and MT which at their inner ends K are notched to correspond in size and position with the ratchets f and respectively.

Across the diameter of the tubes M and Ml are tted the pins H H which are perforated in opposition to each other. A link I lies within the cross arm F and is hinged at its opposite sides to the pins J J which pass through the said suitable perforations in the pins H H and are spring seated thereupon as shown at E. The action of the springs E upon the pins J J serves to draw the tubes M and M toward each other, holding them in engagement with the ratchets f and f.

IVrench heads L L, constructed of tubular metal and iitted at one end in form to suitably embrace the nut to be acted upon, are slotted at the opposite end in form to suitably em# brace the pins H H when the said Wrench head is telescoped into the tubes M and M respectively, K

In operation the wrench is so constructed that when the wrench head L is inserted in the tube M, the handle of the wrench is thrust to the right to act upon the nut engaging the wrench, and when thrust to the left the ratchets f slip upon the notches K of the tube M.

When the wrench head'is inserted in the tube M the ratchetsf are engaged upon the handle being thrust to the left and slipped upon the notched end K of the tube M when the handle is thrust to the right.

Any form of connecting pins H H may be used which may seem mechanically desirable, and any other means of' normally holding tubes M and M in contact with the ratchets f and j" may be used.

My wrench heads I expect to make of any desirable size, form and number.

What I claim as my invention is:

l. A wrench consisting of a handle and a body, said handle being adapted to engage by a screw thread and a taper formation the said body at right angles, said body comprising a tube iitted interiorly with two lines of ratchets opposingly cut in reference to each other,. smaller parallel tubes telescoping within said larger tube and so cut upon the inner edges as to correspond with and engage the said ratchets, wrench heads adapted to engage the outer ends of the said smaller tubes which are held normally in contact with the said ratchets.

2. A wrench consisting of a handle and a body engaging each other in the form of a letter T, said body comprising a tube perforated to receive the said handle in engagew ment, a plurality of parallel lines of ratchets opposingly cut in relation to each other, fitted within said tube and running at right angles to the length of said tube, 'smaller tubes telescoping within the said larger tube and cut at their inner ends to correspond with the said lines of ratchets, Wrench heads iitted within the outer ends of the said -smaller tubes with means whereby said said body tube, fitted on their inner ends With ratchets corresponding With the ratch- *ets in said body tube, cross pins fitted Within the said smaller tubes and adapted to engage Wrench heads fitted in the outer ends of the said smaller tubes and means Whereby said. smaller tubes are normally held in engagement With the said ratohets of the said body tube.

JOHN JOHNSON.

Witnesses:

THOMAS B. GOLDEN, EDWARD FAY. 

